Biology, 11.03.2021 17:30, 222364

3 The human body contains both bones and muscles. Bones are rigid, but muscles can contract
and relax to move the body. What explains this difference in body structures?
(1 Point)
A. Muscles are made of animal cells, and bones are made of plant cells
B. Bones and muscles are made of different kinds of animal cells
C. Bones contain more cells than muscles
D. Muscle cells form tissues, but bone cells do not

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3 The human body contains both bones and muscles. Bones are rigid, but muscles can contract
a...